cros: Fixes the text input focus when screen is locked.

chrome/browser/chromeos/login/ui/lock_window_aura.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_CHROMEOS_LOGIN_UI_LOCK_WINDOW_AURA_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_UI_LOCK_WINDOW_AURA_H_
 
 #include "base/compiler_specific.h"
 #include "chrome/browser/chromeos/login/ui/lock_window.h"
 #include "ui/views/widget/widget.h"
+#include "ui/views/widget/widget_delegate.h"
 
 namespace chromeos {
 
 class LockWindowAura : public views::Widget,
+                       public views::WidgetDelegate,
                        public LockWindow {
  public:
   // LockWindow implementation:
   virtual void Grab() OVERRIDE;
   virtual views::Widget* GetWidget() OVERRIDE;
 
+  // views::WidgetDelegate implementation:
+  virtual views::View* GetInitiallyFocusedView() OVERRIDE;
+  virtual const views::Widget* GetWidget() const OVERRIDE;
+
  private:
   friend class LockWindow;
 
   LockWindowAura();
   virtual ~LockWindowAura();
 
   // Initialize the Aura lock window.
   void Init();
 
   DISALLOW_COPY_AND_ASSIGN(LockWindowAura);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_UI_LOCK_WINDOW_AURA_H_